enlarged vocabulary

Please, find the synonyms of the following words:

blush	shake	giggle	stumble
rosy color	fall over	laugh nervously	make an error
turned red	sink	titter	trip up
sudden reddening	slide down	laughter	slip up
risiness	slouch	laugh	hit
blood	drop off		bumble
flush	decline		fulter
redden	falling off		misstep
crimson	slack		stagger
	fall off falling off		lurch

To which lexical category will you refer these word? (For example, we will be having lexical sections as relationship, mixed emotions, easy situations, difficult situations )
Type your answer here:

mixed emotions